Draining Puffed LIPOs

Here’s an easy and inexpensive way I drain my “puffed” LiPos. I connect the battery to a 50W, 12-volt light bulb and let it light the bulb. In a few minutes, the light goes out. After 24 hours, I do it again to get the last of the energy out of the LiPo. Then it’s all drained and ready to be safely disposed.

Submitted by Joel Cehn, Oakland, CA

Illustrations by David Baker davidb@flyrc.com